When performing, Simonsson and Zingmark magically transform KOOP from a two-man studio project into a full-scale orchestra, complete with multiple singers and up to nine live instruments. KOOP themselves play piano/accordion (Simonsson) and sampler (Zingmark).

KOOP is a true original, known for their groundbreaking sample-based amalgamation of jazz, dance, and electronica. "KOOP ISLANDS" sees Simonsson and Zingmark absorbing the influence of the classic Big Band sound of the Twenties, Thirties, and Forties to create an inimitable groove they call "SWINGTRONICA." Joining KOOP on their remarkable musical journey are a number of guest vocalists including Hilde Louise Asbjornsen (featured vocalist for the U.S. tour as well as a featured recording artist and co-lyricist of "Strange Love" from "KOOP ISLANDS"), Yukimi Nagano, Mikael Sundin, and ex-Galliano frontman Rob Gallagher (all of whom appeared on "WALTZ FOR KOOP"), as well as the acclaimed Norwegian singer-songwriter Ane Brun.